Fallon is a distinctive boys' name in United States, ranking #10439 in 1999 with 5 recorded births. This places Fallon in the bottom 10% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2015 with 37 births ranking #3101. In 1999, approximately 1 in every 384,017 boys born was named Fallon. FALLING Recent data shows the name is currently falling.